Abstract: An infrastructure system (112) for facilitating the creation of time-based digital resumes (124) and time-based digital job orders (126) and the matching thereof (122), the system including an on-site exchange (118), a private exchange (114), and a public exchange (116). A time-basing method (228) for facilitating preprogrammed time-dependent variation in an electronic proposal. An aspiration matching method (150) for matching (122) a digital resume (124) to a digital job order (126), wherein the digital resume (124) includes at least one resume aspiration, and wherein the digital job order includes at least one job order aspiration, in order to achieve a high level of expected satisfaction between the submitter of the digital resume and the submitter of the digital job order upon consummation of a transaction based on the matching (122) of the resume (124) with the job order (126).